| A new Drynaria (Polypodiaceae) from the Upper Pliocene of Southwest China | |
Su, Tao1,2; Jacques, Frederic M. B.3; Liu, Yu-Sheng (Christopher)4; Xiang, Jianying1; Xing, Yaowu1; Huang, Yongjiang1,2; Zhou, Zhekun1,5
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| 通讯作者 | zhouzk@mail.kib.ac.cn |
| 2011-02-01 | |
| 发表期刊 | REVIEW OF PALAEOBOTANY AND PALYNOLOGY
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| ISSN | 0034-6667 |
| 卷号 | 164期号:1-2页码:132-142 |
| 摘要 | A polypodiaceous fern, Drynaria callispora sp. nov., is described from the upper Pliocene Sanying Formation in western Yunnan Province, southwestern China. This species with well-preserved pinnae and in situ spores is the first convincing Drynaria fossil record. Detailed morphological investigation reveals that D. callispora is characterized by 1) pinnatifid fronds with entire-margined pinnae having straight or zigzag secondary veins; 2) finer venation showing void quadrangular areoles, but occasionally with one unbranched veinlet; 3) one row of circular son on each side of the strong primary vein; and 4) in situ spores with verrucate exospores elliptical in polar view and bean-shaped in equatorial view. A morphological comparison shows that D. callispora is significantly different from all the fossil species previously identified as drynarioids. A phylogenetic analysis of D. callispora supports that the fossil is closely related to D. sinica Diels and D. mollis Bedd., two extant species distributing in the Himalayas. The discovery of the new fern indicates that the genus Dynaria became diversified in its modern distribution region no later than the late Pliocene and had retained a similar ecology to that of many modern drynarioid ferns ever since. (C) 2010 Elsevier B.V. All rights reserved. |
| 关键词 | Drynarioid In Situ Spores Pliocene Polypodiaceae Sanying Formation Yunnan China |
| 学科领域 | Plant Sciences ; Paleontology |
| DOI | 10.1016/j.revpalbo.2010.11.011 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000288472200011 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/3842 |
| 专题 | 中国科学院东亚植物多样性与生物地理学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Dept Palaeobot & Palynol, Nanjing Inst Geol & Paleontol, Nanjing 210008, Peoples R China 4.E Tennessee State Univ, Dept Biol Sci, Johnson City, TN 37614 USA 5.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla 666303, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Tao,Jacques, Frederic M. B.,Liu, Yu-Sheng ,et al. A new Drynaria (Polypodiaceae) from the Upper Pliocene of Southwest China[J]. REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2011,164(1-2):132-142. |
| APA | Su, Tao.,Jacques, Frederic M. B..,Liu, Yu-Sheng .,Xiang, Jianying.,Xing, Yaowu.,...&Zhou, Zhekun.(2011).A new Drynaria (Polypodiaceae) from the Upper Pliocene of Southwest China.REVIEW OF PALAEOBOTANY AND PALYNOLOGY,164(1-2),132-142. |
| MLA | Su, Tao,et al."A new Drynaria (Polypodiaceae) from the Upper Pliocene of Southwest China".REVIEW OF PALAEOBOTANY AND PALYNOLOGY 164.1-2(2011):132-142. |
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